Demountable rim.



H, D. HAYVHL'ON 611. GOODMAN.

DEMOUNTABLE RIM.

11P111CAT1011 man 1156.11, 1911.

Patent-ed Apr.' 29, 1919.

2 SHEETS-SHEET 2.

Gib/110 @Will l l im@ .ein Afiliate GDMAN, OF RGIME. lN'ISCNSN.

hacerse Application filed December 17, 1917.

To all ciw/*1L 'it may concern.

Be it known that we, HARRY D. HAMILTON and JULIUs GOODMAN, both citizens of the United States, and residents of Kenosha, in the county of Kenosha and State of llVisconsin, and of Racine, in the county of Racine and State of Wisconsin, respectively, have invented certain new and useful lmproveinents in Deinountable Rims; and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to new and useful in'iproveinents in deniountable vehicle rims, particularly those which are adapted for use on automobiles and similar self pro-- pelled vehicles.

Although there are many forms of demountable riins at present in use, practically all are more or less unsatisfactory as they are dillicult to remove frein the vehicle. wheels, and even when removed it is eX- treinely difficult to separate the tires therefrom. lt is therefore an important `object of this invention to provide a riin Which will not only be readily demountable, but one which will also be separable to permit thc tire to be easily slipped on or od as desired.

An object subordinate to the principal ob ject is to provide an improved, yet simple arrangement for holding the two sections of the separable rim together.

Still another object is to provide ineans for preventing the 'rini from creeping circumferentially about the felly of the wheel.

lWith these and other objects in viewv which will become evident as the description progresses our invention resides in the novel features of construction, combination and arrangement of parts which will be hereinafter more particularly described and claimed.

In the accompanying drawings:

Figure l. represents a side elevational view of a fragment of a vehicle wheel having a portion of a tire held thereon by our iinproved rim, the latter being broken away and in section.

2 is a transverse sectional view taken on the plane of the line 2--9 of Fig. l.

Figs. 3 and 4 are similar views on the planes of the lines 8-3 and i- 4 of Fig. 1, and

Fig. 5 is a detail transverse sectional View of the two sections of the rim arranged in Specification of Letters Patent.

being on the Serial No. 267,495.

juxtapositionv to illustrate the manner in which the tire is disposed on said rini.

` Referring more particularly to the several figures of the drawings it will be seen that the numeral l denotes the felly of a vehicle wheel of conventional design having a metallic reiiiforcing strip 2 on its outer annular surface as is customary in devices of this character. The outer annular surface of the felly is formed at intervals'with transversely extending channels 3, and the reinforcing strip 2 at these points is bent inwardly as at 4. The felly and the reiirifortL ing strip are also provided with a relatively wide channel 5 at a point surrounding the opening for the usual valve stein S as will be hereinafter more particularly described.

The deniountable separable rini which is to be removably disposed on this felly 1 consists of a band G formed of two overlappingl parts (la and 6b and engageable on the follir band7 the outer annular edge of each part having an annular flange 7 for engaging the walls of a tire T. These flanges 7 may be either of the straight-side or clencher type depending upon the form of tire which is te be used on the rim. llig. 3 shows vverf..T clearly the manner in which the parts il and (Sb of the band are overlapped. thc overlapped portion of each being reduced in thickness, the reduction on one part opposite side from that of the other as shown at 8. rlhis reduction extends outwardly from the inner edge and an equal distance on each part, thus when the rim is assembled it will be the saine thickness throughout its width and both inner and outer annular surfaces will be unbroken.

At predetermined. points on the inner an n ular surface of the rixn are cast a number of transversely extending ribs7 each of these ribs being fornied of two parts 9.' and 9" which are aiined when the two sections or parts 6a and 6l of the. rim are properly disposed with respect to each other. As will appear from Fig. l these transverse ribs do pend fromV the band 6 and are disposed in the transversely extending channels formed in the felly l and reinforcing strip 2. I lft is obvious that such ribs when so arranged in the channels of the felly band will prevent all tendency of circumferential creeping of the demountable rim on the vehicle wheel.

The transverse ribs are also designed to nuts 12.

f-jfOgether.-

'--shown clearly in Figs. 2 and 5 v the under surface of the being adapted to seat in the aid in holding the two sections of the rim The preferred arrangement is wherein it will bel-noted that the parts 9 of the ribs have stub Ibolts l extending therefrom, while the parts 9 are provided with longitudinally extending apertures 1l to receive the bolts. The length of said bolts is such that their free ends extend beyond the outer ends of the parts 9 of the rmi to receive .Inasmuch as that this improved rim is primarily designed for use in connection with pneumatic tires, the rim 6 is designed to permit the valve stern S to extend therethrough, and hence the reduced portion 8 of the section 6b of the rim is provided with a hole 13 surrounding which is a reinforcing plate 1l preferably formed integrally with band, this plate 14 channel when the rirn is on the telly. Adjacent the open ing 13 and the plate le both parts 6a and 6b of the band G are cut away as at 15 in Fig. e.

In applying a tire to our improved rim before mounting the same on a wheel, the two parts Cr"- and Gb are separated, the section 6b being then disposed on the ground with its inner edge extending upwardly as in Fig. 5, whereupon the tire T can be readily disposed tlierearound. The other part or section 6 is then placed over the section Gb in such a manner that the stub bolts 10 project into the openings 1l. After applying the nuts 12'to the ends of said bolts the rini and its tire may be disposed upon the felly as hereinbefore mentioned.

It will be noted that owing to the fact 4that the lap joint at the rim body between Lanarte ner tube at' the center of the rim. lt will also be observed that, as the rim beads 7, 7,

are thus separated, crowding of the beads over these rims under the ordinary method of inserting a tire is avoided and this crowding of the beads which heretofore has tended to niutilate the saine, is entirely elimi n'ated as there are no obstructions oiered in inserting the casing.

lWe claim In a structure of the class described, a

two-part separable rim, the inner side portion of 'the rim parts being cutaway on opposite peripheral faces and overlapped, said lapped portions extending substantially equal distances from the center of the rim, a series of transverse wheel engaging ribs on the inner periphery of that rim part which is cutaway on its outer peripheral portion, said ribs extending throughout the entire width of the rim part, a series of transverse ribs on the other rim part extending from its outer edge to its cutaway portion and in alinement with the first named ribs, said second named series of ribs being of consequently lesser length .than the first named ribs, and connecting bolts extending rigidly from the first named series of ribs and passed through the second named series 0f ribs. r

In testimony that we claim the foregoing i we have hereunto set. our hands at Milwaukee, in the county of Milwaukee and State of YVisconsin.

HARRY n. Hai/limon JULiUs doom/ian. 

